Gerolf or Gerulf (c. 850 – 895/896) was the second count of this name who is attested in the area of Friesland (which also included Holland at the time)...

Gerulf, also Gerulf the Elder, (d. after 865) was the first count of Frisia by this name and an ancestor of the Counts of Holland. Initially dispossessed...

Teisterbant 883–916, Gerulf the younger, plausible son of Deodred (Diederik) 916–939, Dirk I, Dirk inherited most of the coastline of Gerulf's domain. Waldger...

film about a German singer-songwriter, directed by Ken Loach and starring Gerulf Pannach [de], Fabienne Babe [fr], Cristine Rose and Sigfrit Steiner. The...

ISSN 1559-8519. PMID 29099625. Savin-Williams, Ritch C.; Joyner, Kara; Rieger, Gerulf (2012-02-01). "Prevalence and Stability of Self-Reported Sexual Orientation...

of Science ONE 11(2): e0148805. doi:10.1371/journal.pone.0148805 Rieger, Gerulf; Savin-Williams RC (2012) The Eyes Have It: Sex and Sexual Orientation Differences...

Orientation (London: Peter Owen Publishers, 2005), p. 21. Chivers, Meredith L.; Gerulf Rieger; Elizabeth Latty; J. Michael Bailey (2004). "A Sex Difference in...

1300/J159v06n01_06. S2CID 144035431. Savin-Williams, Ritch C.; Joyner, Kara; Rieger, Gerulf (February 2012). "Prevalence and Stability of Self-Reported Sexual Orientation...

war. After the elimination of a large portion of the Danish population, Gerulf controlled a large Frisian part of the later county of Holland. This fait...

with sexual fluidity studies adding to the debate. In 2005, researchers Gerulf Rieger, Meredith L. Chivers, and J. Michael Bailey used penile plethysmography...